采用E66底盘、N62或N62TU发动机的宝马7系轿车,因采用8缸发动机,电气线路成对称分布,为了简化线路,采用了集成供电模块(IVM),该模块有9个连接器,分别为相关的模块、传感器和执行器供电。IVM在发动机的控制中起着至关重要的作用,因此在此提醒广大同行,在排除发动机相关故障时,不要忽视对这个模块的检查。案例1宝马745Li轿车起动困难故障现象一辆宝马745Li轿车(采用E66底盘和N62发动机),发动机起动困难,有时要连续起动2 min才勉强起 The BMW 7 Series sedan with E66 chassis, N62 or N62TU engine has symmetrical distribution of electrical circuits due to its 8-cylinder engine. In order to simplify the circuit, an integrated power supply module (IVM) is used, which has 9 connectors, respectively The modules, sensors and actuators are powered. IVM plays a crucial role in the control of the engine, so to remind the majority of colleagues in the exclusion of engine-related failures, do not ignore the inspection of this module. Case 1 BMW 745Li car difficult to start the phenomenon of failure A BMW 745Li sedan (with E66 chassis and N62 engine), the engine start difficult, and sometimes to start 2 minutes before starting barely reluctantly